Suspension clamp



June 8 1926. K 1,587,926

H. M. TAYLOR SUSPENSION CLAMP Filed Oct. l5, 1924 Ihveni'o-r Patented19ste HERBERT MUNRO TAYLOR, OFIORONTO, )NILRIO,` CANADA.

SUSPENSON CLAMP.

Application led October 15, `19.24, Serial Nn. 743,814, and in CanadaOctober 2,391,924.

being tighternedl upon the cable andi whilev the lineman is making thefinal adgustments of the clamp upon` the cable, so as to relieve thelineman of the necessity of bearing any of the weight of the cable whilethese adjust4 ments are being made, thus minimizing the;

risk of injury to the lineman when performing' this ordinarily dangerousoperati on since alll his attention may be given, to the work ofadjusting andtightening; a funther object is to enableia more perfectadgustment of theclampi.ugponthe cable to be made; al

further object is to provide a clamp of great strength and durability; afurther objectl is to devise a clampin which the portionof theclampwhich actually engages the cable is of a Separate piece from theremainder of the clamp g1 andastill further object, is to devise a Clampwhich maybe more inenpensiyely produced than former clamps of thisclass.

Other objects will appear ini the Course of the following specification.Y

My invention consists essentially of a sus. pension clamp comprisingsuspension 4means consisting of a steel; stirrfup open at its lower endand having` the lower ends of thelegs bent to form hool portions uponwhich is carried. `a cable` supporting'L element formed' separate fromthe stirrup and providedt with a seat upon which the cable is` adaptedto restj the device so formed as to permit insertion of the cablevoranyintermediate portion thereof into its supported position within theclamp, and a detachable keeper adapted to engage the upper face of thecable for clamping the cable in position upon the seat7 all ashereinafter more particularly described and illustrated in theaccompanying drawings in..Ll which Fig. l is a top plan View of oneembodiment of my invention.

Fig. 2 is a side elevation of Fig. lvwithI a portion broken anayfand akeeper shewn in a liaisecl or. disengaged position-1 the drawings, l;ilre characters. of ref-erf ence indicate correspondingpartsgin the, dif-vet ferent views.

lily invention comprises ai, suspension elen mentin the f 'orm ofjasti'rrup l .formed front suitable materia-hl such for instancesteelrodfand open] at its lower end.l The lower ends ofthe legs 2 arebent inwardly at 3 in parallelism and upwardly 4, the bent- .portionsforming spaced apart, hook portions, the gap between thesemheolr por-Vtions being, indicated-at A in; Figui.,

rlhe f 'upwardlyvv bent portions 4 areforlled` with any upwardlydisposed shoulder 17 the `purpose of which will. be hereinafter eX!rplxfiined. The extremity of each; upwardly bent portion 4 is threadQ. y

A cable supporting element A6 is formed from sheet lmetal 'and isprovided with a longitudinally disposed cable receiving seat 7. TheCentral portion 8 of the element (itisy "i of greater width than theremainder of thel element and forms a Vflat. seatl for alreeper 9whichis pnovidedkwith openings lOfat each provided. with` a. screw 70 lside thereof.

Theportionof the'element Gis provided, li-l adjacent tov either side.thereof, with opens. ings` l1 adapted to, register with thek open.- ingsl0, of .the keeper,r

Nuts- 12 having engagement upon the threaded@ portions 5... of thestirrup. serve` to 55 seeurethe keeper in, position.

rEhe .upper endy of. the stirrupi is indicated: by the numeral 13,

The central portion .8. of theelement 6 merges into the endportionsthereof along,A m the inclined; flanges` 1.4.`

The stirrup l isgsoformed that the, jpper closed end 13 thereof is,disposed centrally and longitudinally above the element 6, the stirrupthen being bent outwardly in op- 95 posite directions along the inclinedportions l5 and merging into parallel sides 2.

The inwardly bent portions 3 are disposed obliquely with respect to theupper portion me A transmission line cable 16 is shown in its supportedposition within the clamp in Figs. l and 2.

The clamp is assembled by inserting the element 6 between the side legs2 of the stirrup and lowering so that the portions a pass upwardlythrough the openings 11.

llhen so mounted it will be observed that the element 6 is firmly heldwithin the stirrup, being supported upon the hook portions 3 and beingheld in position by the engagement of the upwardly bent portions lewithin the openings 1l.

The method of employing` my improved clamp is as follows z* The stirrupl is connected to the ordinary suspension insulator after the usualmanner andthe stretched line cable 16 is passed upwardly into thestirrup through the gap A between the lower bent ends of the stirrup.

The cable supporting element 6 is then inserted between the legs 2 ofthe stirrup below the cable and is lowered into its engaged position, asillustrated in Figs. l and 2. The cable is then seated upon its seat 7formed in the element 6.

IVhen in this position it will be observed that the cable is fullysupported by the clamp independently of and before the keeper 9 has beentightened into position.

This relieves the lineman of all necessity of carrying any of the weightof the cable line while the final adjustments of the clamp upon thecable are being made, so that he can give his full attention toobtaining a perfect adjustment.

The keeper 9 is now secured in position and forms a clamp engaging theupper face of the cable for securely holding the cable in positionwithin the clamp.

In order to prevent distortion of the stirrup by its being drawnupwardly through the orifices l1 as the nuts 12 are tightened upon thethreads 5, the upwardly disposed shoulders 17 are provided, which engagethe under face of the element 6 (see Fig. 2).

It will be noted that in a clamp constructed according to my inventionthe cable supporting member is made separately from the suspensionstirrup and may thus be made of different material as desired, such forinstance as a steel or aluminum plate.

In the case of cables which have a steel centre with the outer strandsof aluminum, this cable supporting element. if made of aluminum, wouldprevent damage to the cable due to electrolysis.

From the foregoing it will be apparent that I have devised valuableimprovements in suspension clamps of the class described whereby theobjects of my invention have been attained.

Various modifications may be made in my invention without departing fromthe spirit thereof or the scope of the claims and therefore the exactforms shown are to be taken as illustrative only and not in a limitingsense and I desire, that only such limitations shall be placed thereonas are imposed by the prior art or are specifically set forth in theappended claims.

What I claim as my invention is:

l. A suspension clamp for a line cable comprising, a suspension stirrupopen at its lower end, the lower ends of the legs of the stirrup bentinwardly and upwardly to form spaced apart hook portions, a cablesupporting element consisting of a plate formed with a seat upon whichthe cable is adapted to rest, said supporting element detachably mountedwithin the stirrup and supported by the hook portions and provided withopenings through which the upwardly bent ends of the stirrup extend,said upwardly bent ends threaded, a detachable keeper engaging the upperface of the cable and provided with openings through which said threadedends project, and nuts having thread-ed engagement upon the threadedextremities of the stirrup.

2. A suspension clamp for a line cable comprising, a suspension stirrupopen at its lower end, the lower ends of the legs of the stirrup bentinwardly and upwardly to form i spaced apart hook portions, a cablesupporting element consisting of al plate formed with a seat upon whichthe cable is adapted to rest, said supporting element detachably mountedwit-hin the stirrup and supported by the hook portions and provided withopeningsthrough which the upwardly bent ends of the stirrup extend,upwardly disposed shoulders formed on the upwardly bentl ends of thestirrup in spaced relation from the extremities thereof and engaging theunder face of the cable supporting element, said upwardly bent endsthreaded, a

detachable keeper engaging the upper face of the cableA and providedwith openings through which said threaded ends project, and nuts havingthreaded engagement upon the threaded extremities of the stirrup.

HERBERT MUN RO TAYLOR.

'ilO

